Preheat the oven to 350 degrees F. Spray a 9x13 baking dish with nonstick spray.
In a large bowl add bread crumbs, parmesan cheese, parsley and garlic powder, stir with a spoon to mix. Add shrimp and mix again to fully coat them in this mixture.
Remove shrimp from bowl and place in baking dish, in single layer. If there is any bread crumbs left over you can sprinkle some on top. Pour melted butter on top of the shrimp.
Bake for 18-20 minutes or until crispy. If you want them browned on top, turn the broiler on and cook for 2-4 more minutes or until the top of shrimp is light browned. Serve and enjoy!